Attachment for reshaping tubular members



c. J. LOUIS ATTACHMENT FOR RESHAPING TUBULAR MEMBERS Dec. '4, 1928'.

Filed Jan. 20, 1923 Patented Dec. 4, 1928.

'UNITED'ST'ATE'S:

I 1,693,850 PATENT OFFICE.

climns .L- LOUIS, or ST. LOUIS, MISSOURI, assrenon or TWO-THIRDS 'ro 1w. '1'.

nanmena, or new 8'1. LOUIS, ILLINOIS.

arracnm'r roa nnsmrne rostrum mans.

Application filed January 20, 1923; Serial mi. 618,982. f

This invention relates to devices such as are used in the manufacture of tubular members made from a fibrous material, the pri-. mary object thereof being for the purpose of providing an improved attachment for reshaping tubular fibrous members.

Another object of the invention is to provide a different method than heretofore used in the manufacture of tubular members.

A further ob'ect of the invention is in providing an attac ment to a device for making tubular members whereby the members are formed into a different shape than that in a which they were previously made.

A still further object of the invention is in providing an attachment whereby tubular members are swaged into a different contour.

Other and further objects will appear'in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawings, exemplifying the invention, and in which:

Figure 1 is a plan view of a machine used in the manufacture of fibrous tubular members showing this improved attachment in section and applied thereto.

Figure 2- is 1 an enlarged vertical section taken on the line IIII of Fig. 1.

Figure .3'is an enlarged vertlcal section taken on the line III-III of Fig. 1.

Figure 4 is an enlarged perspective view' of the swaging tool used in connection with this improved attachment.

Referring by numerals to the accompanying drawings, 1 designates a sup rting frame of a machine and lon 'tudina ly supported thereabove is a man rel 2 which is rigidly supported at one end in a rest 3 by the set screws 4. I

This improved attachment designated as 5 is adapted to support the opposite end of the mandrel 2, in which :1 turned down portion 6 is extended from the end of the mandrel adjacent the attachment 5, said extension being 5 supported in the swaging tool 7 which forms part of the attachment This improved attachment is comprised of a pair of vertically arranged plates 8 and 9 eac having respectivehub-like portions 10 and 11 which abut, said hub-like portions pro viding a centrally arranged opening 12 throlglgh which. the swaging tool 7 is proecte J Pami-ng through the abutting hubs 10 and 11 of the respective plates 8 and 9 are a series .tion of the paper length 34 as clearly-shown of screws 13 which are used for holdin said hubs in abutment with one another, an provided by said hubs between the plates 8 and 9 is in annular .groove14, and mounted within said groove is a supporting collar 15 which encircles the outer peripheries of the hubs 10 and 11, and arranged between said hubs and-the inner surface of the collar 15 are a series of roller bearings 16.

The collar 15 is adapted to support the attachment 5 from a bracket 17 which is secured to the supporting frame 1, there bein a pin 18 projecting from said bracketto sai collar.

Formed on one of the faces of the late 8 are a pair of sggced apart guiding led ges 19 and arranged tween said ledges are a pair of slidable blocks 20, each block being disposed. on a respective side of the openin 12 through wliich the swaging tool 7 is e'xten ed, each of said blocks supporting a roller 21.

For adjusting each block 20 a respective set screw 22 is provided, each screwbeing in threaded engagement with a respective lug 23, i said lugs being borne by the plate 8.

The plate 9 is provided with a pair of oppositely disposed guideways 24 and slidably mounted within said guideways are a pair of blocks 25 each bearing a roller 26 and for adjusting said blocks are respective set screws 27, each having threaded engagement with respectige lugs 28, which are borne by said p. ate Y The swaging tool 7 is provided with a bore 29 at its tapered end 30 and a counter-bore 31 at its opposite end, said bores 29 and 31 providing an'interiorly formed shoulder 32, said swaging tool when mounted on the extension 6 of the mandrel 2 providing for the extendding end of said extension to extend through the bore 29 and into the counter-bore 31, said swaging tool being loosely secured on the extension 6 by the nut 33 which bears against the shoulder 32.

In the operation of the improved attachment, a paper length 3%1 leading from a source v of supply is spirally engaged unto the mandrel 2, then a paper length 35 is enga ed on. the mandrel spirally over the engage porin Fig. 1, the under face of the paper length 35 when overlapped on the paper length 34 .will adhere to the spirally wrapped portion of the paper-length 34. v a

The spiral winding of the paper lengths 34 J10 and 35 u on the mandrel 2 is merely preliminary an it is required that it be done y hand and in which when portions of the aper length are wound into. a tubular formation it is moved along the mandrel 2 in the direction of the arrow 36 towards the attachment 5 and at the same time that the spiral winding is being applied by hand the tubular formation thereof is fed under the wound portion 37 of an endless belt 38, said belt being mounted over pulleys 39 and 40. v

A second endless belt 38 having a portion 41 which is adapted to be wound around the mandrel 2 is mounted over pulle s 42 and 43:

After the paper lengths have be wound along the mandrel 2 and beneath the portions 37 and 41 of the respective belts 38 and 38 the belts 38 and 38 are put into operation. This is brought about by power being applied to the driving belt'44 and pulley 45 on which said belt is mounted, said pulley 45 being mounted on the shaft 46 which bears the pulley 43, and in as much as the pulley 42 is operated by the belt 38 motion will be imparted to the shaft 47 on which said pulley 42 is mounted. Apulley 48 which is mounted on the shaft 47 will then transmit motion by the belt 49 which is mounted over the pulley 48 and pulley 50, said pulley 5O beingomounted on shaft 51 which bears the pulley 39. The pulley 39 will incidentally drive the belt 38'. On account of the acute angle in which the belts 38 and 38 travel on and off the mandrel 2 and incidentally over the spiral winding of paper lengths, the spiral winding designated as 52 will not only be turned upon the mandrel but will be moved forwardly along the mandrel'in the direction of the arrow 36.

This turning and carrying forward movement of the spiral winding 52 will cause said spiral winding to feed itself on to the swaging tool 7, and inasmuch as the swaging tool 7 is loosely mounted on the extension 6 of the mandrel 2,-the spiral winding or tube thereby formed will cause said swaging tool to be revolved therewith.

It is to be noted that the swaging tool 7 is provided with opposing flat sided faces 53 and 54, said tool also being/ta ered at its forward end as at 30, said tapere end providing for the newly formed tube to ride onto the swaging tool with ease by reason of the tapered end 30 being smaller in diameter than the mandrel 2.

As the tube which is originally made round in shape by the mandrel 2 which is in the form of a shaft is engaged over the flat sides 53 and 54, the pair of rollers 21 of the plate 8 will press against the portions of the tube that are mounted over the respective fiat sides 53, and as the tube is further travelled longitudinally over the swaging tool 7 the portions of the tool which are engaged over the respective faces 54 will be pressed against by the respective rollers 26 of the plate 9, said rollers 21' en spirally formation as shown more clearly in Figs. 2

and 3.

As the swaging tool 7 is revolved by the tubing traveling longitudinally thereover, the engagement of the'rollers 21 and 26 with the outer periphery of the tubing will cause the attachment 5 to be revolved within the vcollar 15 which is stationari'ly held and rigidly secured to the bracket 17.

From the foregoing description of this improved invention it is to be noted that theswaging tool is practically a continuity of the mandrel 2 m which the tube is first formed circular on the mandrel and is changed to the form of a flat sided tubing as it is fed over the swaging tool 7. p

- The purpose of providing a flat sided or square tubing is so that square paper cans can be made.

What I claim is 1Q A tube making device comprisin a mandrel, a swaging tool loosely secured to one end of said mandrel, said tool at its end which'is adjacent said mandrel being smaller in diameter than said mandrel.

2. An attachment for working on a tubular member comfprisingan outwardly bulglng element over which the tubular member is forced, and adjustable pressing means for bearing against the tubular member as it is being operated on by said element.

3. An attachment for working on a tubular member comprising meansfor forming said member, means forlongitudinally traveling said member, and an lnsertable reshaping element over which said member is longitudinally travelled turnably secured to one end of said forming means.

4. An attachment for working on a tubular member comprising means for forming said member, means for longitudinall traveling said member, an insertable reshaping element over which said member is longitudinally travelled, and adjustable pressing means for hearing against the tubular member as it is being operated on by said element.

5. A tube making device comprisin a'stationarily held mandrel, means for eedin and forming material around said mandre means for revolving and longitudinally traveling the formed material on said mandrel, said mandrel having a portion extending therefrom, and a swaging tool having a tapered and mounted on said extending portion and free to be revolved thereon, said tapered end of said tool bein smaller in diportion of said mandrel for receiving the formed material from said mandrel, said tool adapted to reshape the material.

8. In a tube forming device, the combination of a stationarily held mandrel, means for feeding and forming material around said mandrel, means for revolving and longitudinally trayelling the formed material on said mandrel, and a swaging member loosely secured to one end of said mandrel over which the formed material is forced, said member adapted to be freely revolved by the material being forced thereon.

9. In a tube forming device, the combination of a stationarily held mandrel, means for feeding and forming material around said mandrel, means for revolving and longitudinally travelling the formed material on said mandrel, said mandrel havin a portion extended from one end thereo and a turnable swaging member mounted on said extended portion of said mandrel over which the formed material is forced.

10. An attachment for working on a tubular member comprising means for forming said member, means for longitudinally traveling said member, and an insertable reshaping element'over which said member is longitudinally travelled turnably secured to one end of said forming means, one end of said element being smaller in diameter than said forming means.

11. A tube making device comprising a mandrel, means for feeding and forming material around said mandrel, said mandrel having a portion extended from one end, and

a swa ing tool loosely mounted on said extende portion of said mandrel for receiving the formed material from said mandrel, said tool having a portion which is smaller in diameter than said mandrel adapted to reshape the material.

CHARLES J. LOUIS. 

